Stormwater Runoff

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Stormwater Runoff

• Pollution enters water from stormwater runoff
  after rains
• Stormwater runoff from inside this line can end
  up in Tampa Bay via creeks, canals, or storm
  sewers.
• The watershed for Tampa Bay includes nearly ALL
  of Hillsborough County
• Pinpoint your school location and identify nearby
  creeks, canals, or lakes. Where does the water go?

Direction of water flow
This is a Watershed Map
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Nitrogen Too Much is a Bad Thing!

• Nitrogen
• is an essential plant nutrient but
• excess amounts of nitrogen cause algae growth
  that clouds water, robs it of oxygen, and causes
  seagrasses (and other plants) to die
• Have you ever seen a green, scummy lake? It
  could be too much nitrogen!

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Nitrogen Too Much is a Bad Thing!

• How Nitrogen Enters the Bay
• wastewater (sewage) discharges
• stormwater runoff carrying excess fertilizer
  residues. Nitrogen is a key ingredient in
  fertilizer. Stormwater runoff also carries
  pesticide residues, as well as trash, spilled gas
  and oil.
• A significant amount of nitrogen in the bay also
  comes from air pollution--power plants and
  automobiles (NOX)

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Preparing your graphic organizer for notes
on Threats to the Bay